102068521 has 4 divisors (see below), whose sum is σ = 102211200. Its totient is φ = 101925844.

The previous prime is 102068509. The next prime is 102068539. The reversal of 102068521 is 125860201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102068521 - 2⁵ = 102068489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102068591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70261 + ... + 71698.

It is an arithmetic number, because the mean of its divisors is an integer number (25552800).

Almost surely, 2^102068521 is an apocalyptic number.

It is an amenable number.

102068521 is a deficient number, since it is larger than the sum of its proper divisors (142679).

102068521 is an equidigital number, since it uses as much as digits as its factorization.

102068521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142678.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 102068521 is about 10102.8966638286. The cubic root of 102068521 is about 467.3374744608.

The spelling of 102068521 in words is "one hundred two million, sixty-eight thousand, five hundred twenty-one".